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Method development and validation for naratriptan determination in human plasma by HPLC with tandem mass spectrometry detection, and its application to bioequivalence study / Desenvolvimento de método e validação para determinação de naratriptan em plasma humano por HPLC com detecção de espectrometria de massa em tandem, e sua aplicação ao estudo de bioequivalência
Challa, Balasekhara Reddy; Awen, Bahlul Zayed Shtaiwy; Chandu, Babu Rao; Shaik, Rihana Parveen.
  • Challa, Balasekhara Reddy; Jawaharlal Nehru Technological University. Anantapur. IN
  • Awen, Bahlul Zayed Shtaiwy; Al-Jabal Al-Gharbi University. School of Pharmacy. LY
  • Chandu, Babu Rao; Al-Jabal Al-Gharbi University. School of Pharmacy. LY
  • Shaik, Rihana Parveen; Jawaharlal Nehru Technological University. Anantapur. IN
Braz. j. pharm. sci ; 47(1): 13-22, Jan.-Mar. 2011. ilus, graf, tab
Article in English | LILACS | ID: lil-586521
ABSTRACT
The authors developed a simple, sensitive and specific liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the quantification of naratriptan (NP) in human plasma using naratriptan-d3 (NPD3) as an internal standard (IS). Chromatographic separation was performed on a Zorbax SB-C18, 75 x 4.6 mm, 3.5 µm column with an isocratic mobile phase composed of 0.1 percent formic acid acetonitrile (5050 v/v), at a flow-rate of 0.6 mL/min. NP and NPD3 were detected with proton adducts at m/z 336.5→98.0 and 339.4→101.0 in selected reaction monitoring (SRM) positive mode, respectively. The liquid-liquid extraction method was used to extract the NP and NPD3. This method was validated over a linear concentration range of 0.1-25.0 ng/mL with a correlation coefficient of (r2) > 0.9998. The Intra-day and Interday precision was found to be 1.8 to 3.6 percent, and 2.3 to 2.6 percent, and accuracy to be 101.7- 104.2 percent and 101.8 to 102.9 percent, respectively. NP was found to be stable throughout freeze-thaw (three cycles), bench top and auto sampler stability studies. This method was successfully applied for the analysis of plasma samples following oral administration of NP (2.5 mg) in 31 healthy Indian male human volunteers under fasting conditions.
RESUMO
Os autores desenvolveram um método simples, sensível e específico de cromatografia líquida-espectrometria de massa-tandem (LC-MS/MS) para a quantificação de naratriptan (NP) em plasma humano empregando naratriptan-d3 (NPD3) como padrão interno de referência (IS). A separação cromatográfica foi realizada em coluna Zorbax SB-C18, 75 x 4,6 mm, 3,5 μm com fase móvel isocrática composta por 0,1 por cento ácido fórmico acetronitrila (5050 v/v) e taxa de fluxo de 0,6 mL/min. NP e NPD3 foram detectados com adutos de prótons a m/z 336.5→98.0 e 339.4→101.0 in em modo positivo do tipo monitoramento de reação selecionada (SRM), respectivamente. Extração líquido-líquido foi empregada para extrair NP e NPD3, sendo o método validado para uma faixa linear de concentração de 0,1-25,0 ng/mL resultando em coeficiente de correlação (r2) > 0,9998. A variação intra e interdia observada para precisão foi de 1,8 a 3,6 por cento e 2,3 a 2,6 por cento, respectivamente; para exatidão a variação foi de 101,7 a 104,2 por cento e 101,8 a 102,9 por cento, respectivamente. O NP se mostrou estável frente a processos de congelamento-descongelamento (3 ciclos), e estudos de estabilidade de bancada e amostragem automática. O método desenvolvido foi aplicado com sucesso para a análise de amostras de plasma após a administração oral de 2,5 mg de NP em 31 voluntários humanos, de nacionalidade indiana, sexo masculino, sob condições aceleradas.
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Full text: Available Index: LILACS (Americas) Main subject: Plasma / Spectrum Analysis / Therapeutic Equivalency / Drug Evaluation / Tandem Mass Spectrometry Type of study: Diagnostic study Limits: Adult / Humans / Male Country/Region as subject: Asia Language: English Journal: Braz. j. pharm. sci Year: 2011 Type: Article Affiliation country: India / Libya Institution/Affiliation country: Al-Jabal Al-Gharbi University/LY / Jawaharlal Nehru Technological University/IN

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Full text: Available Index: LILACS (Americas) Main subject: Plasma / Spectrum Analysis / Therapeutic Equivalency / Drug Evaluation / Tandem Mass Spectrometry Type of study: Diagnostic study Limits: Adult / Humans / Male Country/Region as subject: Asia Language: English Journal: Braz. j. pharm. sci Year: 2011 Type: Article Affiliation country: India / Libya Institution/Affiliation country: Al-Jabal Al-Gharbi University/LY / Jawaharlal Nehru Technological University/IN